On Thursday temepratures are set to reach 30C in Doncaster but the heat and humidity could set off some dramatic storms on Friday.

READ MORE: Remember the heatwave of 1976?The warning - which is in place between 2pm and 11.45pm on Friday - states: "Whilst many places are likely to remain dry, there is the potential for thunderstorms to develop during Friday afternoon, lasting well into the evening.

"Where these occur expect torrential downpours with a much as 30 mm of rainfall in 1 hour and 60 mm in 3 hours.